Time to fill this bad boy with great products like gadgets, electronics, housewares, gifts and other great offerings from Groupon Goods.
| Normal Frequency | 2.0MHz |
| Working Frequency | 2.0MHz +/-10% |
| Ultrasonic Output Intensity | Ista <5 mW/cm2 |
| Effective Radiating Area of Transducer | 208mm2 +/-15% |
| FHR Measuring Range | 50 - 240BPM |
| Resolution | 1BPM |
| Accuracy +/- | 2BPM |
| On Board Controls | Speaker, 3.5mm Jack Input, Volume Control, ON/OFF Power Button |
| Power Source | One 9V battery |